Honeywell T8131A Owner's Manual - Page 20

Warm Air Furnace-set at the Hot Water

Get Honeywell T8131A PDF manuals and user guides View all Honeywell T8131A manuals
Add to My Manuals
Save this manual to your list of manuals

Page 20 highlights

Adjust Fan Operation Switch ³ The thermostat fan operation switch, labeled FUEL SWITCH (see illustration on page 21), is factory-set in the F position. This is the correct setting for most systems. If your system is an electric heat system, set the switch to E. The E setting allows the fan to turn on immediately with the heating or cooling in a system where the G terminal is connected. Adjust System On-Time, °F/°C ³ The thermostat on-time is factory-set for a warm air, gas or oil heating system. If you are installing it on another type of system, adjust the on-time accordingly by setting screws A and B on the back of the thermostat. Use the heating system table shown in the illustration (page 21) as a guide. Optimize the system on-time according to the type of system to minimize room temperature swings. Setting the screw out one turn means turning the screw approximately 360° counterclockwise, or about one complete turn. In the unlikely event that you want a longer furnace on-time, readjust screws A and/or B as follows: First, turn in both screws completely, then adjust for system type: • Warm Air Furnace-set at the Hot Water setting (A-out one turn, B-leave in). 20 69-0887-1

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
20
69-0887—1
Adjust Fan Operation Switch
A
The thermostat fan operation switch,
labeled FUEL SWITCH (see illustration on
page 21), is factory-set in the F position.
This is the correct setting for most
systems. If your system is an electric heat
system, set the switch to E. The E setting
allows the fan to turn on immediately with
the heating or cooling in a system where
the G terminal is connected.
Adjust System On-Time,
°
F/
°
C
A
The thermostat on-time is factory-set for
a warm air, gas or oil heating system. If
you are installing it on another type of
system, adjust the on-time accordingly by
setting screws A and B on the back of
the thermostat. Use the heating system
table shown in the illustration (page 21)
as a guide.
Optimize the system on-time according to the
type of system to minimize room temperature
swings. Setting the screw
out one turn
means
turning the screw approximately 360
°
counter-
clockwise, or about one complete turn.
In the unlikely event that you want a longer
furnace on-time, readjust screws A and/or B as
follows:
First, turn in both screws completely, then
adjust for system type:
•
Warm Air Furnace—set at the Hot Water
setting (A—out one turn, B—leave in).